A management program which limits, by regulation, the size and numbers of fish which may be harvested in order to provide increased catch rates for larger fish which are considered quality size by most anglers. May be applied to water areas or to specific species within a water area.

Quartz

An important rock-forming silicate mineral composed of silicon-oxygen tetrahedra joined in a three-dimensional network. It is distinguished by its hardness, glassy luster and conchoidal fracture.

Quartzite

A sandstone recrystallized by metamorphism.

Quaternary

The second period of the Cenozoic Era, following the Tertiary. It began 2 to 3 million years ago and extends to the present. It contains the Pleistocene and the Holocene periods.